World’s strongest magnet

[Drone]

Question... how many T's is typically produced by an MRI?

Nice question there. There are different versions for example 7T MRI by Siemens.

Or this one:

https://medcom.uiowa.edu/theloop/research/7-tesla-mri-installed

7 Tesla Whole Body Scanner, manufactured by GE Healthcare and weighing 42 tons, or the equivalent of six adult male elephants, has found its home on the UI campus. The UI is one of only about 20 research institutes in the United States - and only about 40 worldwide - with this type of instrument.

edit: snip from that site:

How strong is the magnet? When an electric current is passed through the superconducting magnet's specialized coils (made of niobium-titanium), a strong, uniform magnetic field forms. The magnetic field strength is measured in Tesla (T). Most MRI scanners used for clinical purposes have field strengths of 1.5 or 3 Tesla. The new research scanner has a 7 Tesla field. (By comparison, the Earth's magnetic field is approximately 3.1×10^-5 Tesla.)

Once the scanner is energized, it will remain a magnet without any additional energy being used as long as it stays extremely cold. Liquid helium, which boils at 4.2K is used to keep the scanner cold.

 

[Drone]

National MagLab racks up new record with hybrid magnet (for biological research)

The world-record 36-tesla series connected hybrid before being lowered into its cryostat.

After a decade of planning, designing and building, the National MagLab has successfully tested the latest addition to its world-record lineup: a 33-ton engineering marvel called the series connected hybrid (SCH) magnet.

On Nov. 8, the instrument reached its full field, 36 tesla (a strong refrigerator magnet is .01 tesla, and a typical MRI machine is 1.5-3 tesla).

The SCH is not the strongest continuous-field magnet in the world — that honor goes to the MagLab's 45-tesla hybrid magnet, which has held the record since 1999. It is, however, expected to become the strongest magnet in the world by far for nuclear magnetic resonance (NMR) spectroscopy, a powerful technique used by biologists and chemists to study molecular structures in proteins and materials.

What makes the SCH unique is that it can create a very high magnetic field that is also of very high quality. For magnets, "quality" means a field that remains constant over both the time it takes to run an experiment and the space in which the experiment takes place in the magnet. Unlike most of the physics research done in magnets, NMR requires fields that are very stable and homogeneous.

At 36 tesla, the SCH is > 40% stronger than the previous world-record NMR magnet (the MagLab's Keck magnet) and >50% more powerful than the highest field high-resolution NMR magnet, a 23.5 tesla system in Lyon, France.

In NMR, scientists use magnets and radio waves to locate a specific element (commonly hydrogen) in proteins and other samples, which helps them figure out those complex structures. A powerful technique in health research, scientists use it, for example, to pinpoint a virus' vulnerability to drugs.

Existing NMR magnets are limited to locating just a handful of elements, notably hydrogen, carbon and nitrogen. The SCH's 36-tesla field could revolutionize NMR because it significantly boosts the instrument's sensitivity, expanding the menu of elements scientists can see.

An old video from MagLab

 

[natr0n]

Magnets are scary... I had an mri on my shoulder yesterday.
I asked the tech how much is the machine he said 3 million around.

 

[twilyth]

One tesla is equivalent to 10000 gauss. So if it's a 3 tesla machine that would be 30k gauss or 30M milligauss. Not sure where he got the 3M number from. https://en.wikipedia.org/wiki/Gauss_(unit)

The only way that works out is if it were a .3T MRI and I don't think they make them that small.

 

[Drone]

New record: National MagLab magnet reaches peak performance

In 2016, the MagLab's new Series Connected Hybrid (SCH) magnet reached its world-record magnetic field of 36 teslas. More recently, it attained its performance specification of less than 1 part per million of field variation in both time (stability) and space (homogeneity). In other words, the magnetic field varies very, very little across the volume in which experiments are conducted and the time during which they take place. This highly uniform and stable field enables solid-state NMR experiments at 50% higher field than previously possible.

 

[RejZoR]

With strong enough magnetic force, we could create zero gravity on Earth Get on it lads!

 

[flmatter]

Not sure where he got the 3M number from

asked the tech how much is the machine he said 3 million around

I took it as how much the machine cost not how much magnetism. Although I could be wrong.

 

[FordGT90Concept]

They should totally turn it into a cannon.


FYI, there's a 100 tesla pulse magnet at LANL (lasts 15ms, can be used every hour):
https://nationalmaglab.org/about/around-the-lab/meet-the-magnets/meet-the-100-tesla-pulsed-magnet

Edit: I want to know more about that 1.43 gigawatt motor at LANL but I can't find any more information about it.

 

[Drone]

MagLab reclaims record for strongest resistive magnet

The new instrument reached 41.4 teslas on Aug. 21, the culmination of two and a half intense years of design and development.

Magnet specs and full info here

 

[hckngrtfakt]

so that's technically 414,000 gauss ?? or about 7 times stronger than an MRI machine ??
I wonder if this magnet can cause actual cell damage or how its distortion field gets controlled